Testing at Scale at Meta and Salesforce

•Download as PPTX, PDF•

0 likes•32 views

Do you ever worry that your testing skills are too limited for your company? Are you concerned that other organizations, especially the ones with a massive scale, require a completely different set of skills? Worry no more! This talk will look at how testing is done at companies with the scale of the likes of Salesforce and Meta. We will discuss how the most basic testing skills and tools we use daily are transferable to any company.

Testing at Scale:
Learning from Experiences at
SFDC and Meta
Dmitry Vinnik
@DmitryVinnik dvinnik.com

Let’s get back to the talk
@DmitryVinnik dvinnik.com

Little Kids, Little Problems,
@DmitryVinnik dvinnik.com

Little Kids, Little Problems,
Big Kids, Big Problems
@DmitryVinnik dvinnik.com

Small Companies, Small Problems,
@DmitryVinnik dvinnik.com

Small Companies, Small Problems,
Big Companies, Big Problems
@DmitryVinnik dvinnik.com

It all comes down
to one issue
@DmitryVinnik dvinnik.com

Gap within Teams
@DmitryVinnik dvinnik.com

Gap within Teams
Engineers Testers
Stakeholders
@DmitryVinnik dvinnik.com

Our Goal Today?
@DmitryVinnik dvinnik.com

Bridge that Gap
@DmitryVinnik dvinnik.com

Engineers Testers
Stakeholders
Bridging the Gap
@DmitryVinnik dvinnik.com

Today’s Focus
Union of Engineering and Testing
Importance of Responsibility for Quality
Quality vs Quantity

Agenda
Quality vs
Quantity
Back to
Basics
Team
Dynamics
@DmitryVinnik dvinnik.com

Agenda
Quality vs
Quantity
Back to
Basics
Team
Dynamics
Back to
Basics
Team
Dynamics
@DmitryVinnik dvinnik.com

Where should we start?
@DmitryVinnik dvinnik.com

Let’s talk about Life
@DmitryVinnik dvinnik.com

Book Suggestion
@DmitryVinnik dvinnik.com

Is it really all about
Quantity?
@DmitryVinnik dvinnik.com

“We’ve added Years to Life,
not Life to Years”
by George Carlin
@DmitryVinnik dvinnik.com

Quality is what matters!
@DmitryVinnik dvinnik.com

What is a problem with
Quantity?
@DmitryVinnik dvinnik.com

Your Goal should be
@DmitryVinnik dvinnik.com

Quality over Quantity
@DmitryVinnik dvinnik.com

We have our
priorities straight
@DmitryVinnik dvinnik.com

How do we improve?
@DmitryVinnik dvinnik.com

Back to the basics
@DmitryVinnik dvinnik.com

Agenda
Quality vs.
Quantity
Back to
Basics
Team
Dynamics
Back to
Basics
Team
Dynamics
Quality vs
Quantity
Back to
Basics
@DmitryVinnik dvinnik.com

What are
our Test Basics?
@DmitryVinnik dvinnik.com

Test Pyramid
↑ Fidelity
↓ Speed
↑ Cost
↓ Fidelity
↑ Speed
↓ Cost
@DmitryVinnik dvinnik.com

Simple, right?
@DmitryVinnik dvinnik.com

Easier said than done
@DmitryVinnik dvinnik.com

Real life
is more Real
@DmitryVinnik dvinnik.com

Real “Test Pyramids”
Ice Cream
Cone
Hourglass
Cupcake
Hourglass
Cupcake
@DmitryVinnik dvinnik.com

By Tim Cochran
@DmitryVinnik dvinnik.com

What is a Problem?
@DmitryVinnik dvinnik.com

Ice Cream Problems
Manual
Testing
↑ UI Tests ↓ Unit Tests
↑ UI Tests ↓ Unit Tests
@DmitryVinnik dvinnik.com

Manual Testing
@DmitryVinnik dvinnik.com

Manual Testing
Cannot be Core Testing
@DmitryVinnik dvinnik.com

Continuous Delivery
By Ham Vocke
@DmitryVinnik dvinnik.com

Bridging the Gap:
Engineers and Testers
@DmitryVinnik dvinnik.com

Testing and
Continuous Delivery
Smoke
Tests
Regression
Funnel
@DmitryVinnik dvinnik.com

Ice Cream Problems
Manual
Testing
↑ UI Tests
↓ Unit
Tests
↑ UI Tests
↓ Unit
Tests
Manual
Testing
↑ UI Tests
@DmitryVinnik dvinnik.com

Lots of UI tests
@DmitryVinnik dvinnik.com

Remember the Pyramid
@DmitryVinnik dvinnik.com

Remember the Pyramid:
UI Tests
↑ Fidelity ↓ Speed
↑ Cost
@DmitryVinnik dvinnik.com

Why so many UI tests?
Test
Duplication
Sunk Cost
Fallacy
Decomposition
Fallacy
“Cheap”
Investment
“Cheap”
Investment
Sunk Cost
Fallacy
Decomposition
Fallacy
@DmitryVinnik dvinnik.com

Ultimately,
Priority Fallacies
@DmitryVinnik dvinnik.com

Priority Fallacies
Ball
Throwing
Regression:
Future Problem
No Dev
Ownership
@DmitryVinnik dvinnik.com

Testing is
Everyone’s Responsibility
@DmitryVinnik dvinnik.com

Priority Fallacies:
Solutions
Recognize
Problem
Test Code/
Prod Code
Handoff
Standards
@DmitryVinnik dvinnik.com

Testing as
Production Code
Review
Test Code
Test
Champions
1:1
Model
Find Risky
Areas

Ice Cream Problems
Manual
Testing
↑ UI Tests ↓ Unit Tests
↑ UI Tests ↓ Unit Tests
Manual
Testing
↑ UI Tests
↑ UI Tests ↓ Unit Tests

What are Unit Tests?
@DmitryVinnik dvinnik.com

Why are they important?
@DmitryVinnik dvinnik.com

Unit Tests are
@DmitryVinnik dvinnik.com

Feedback for your Team
@DmitryVinnik dvinnik.com

Why does
feedback matter?
@DmitryVinnik dvinnik.com

By Jeff Atwood
@DmitryVinnik dvinnik.com

Not just Unit Tests
@DmitryVinnik dvinnik.com

More Feedback Tests!
@DmitryVinnik dvinnik.com

Testing for
Feedback Loop
Help to
Write
Help to
Understand
Help to
Change
Help to
Understand
Help to
Change
Unit Tests
Help to
Understand
Integration
Tests
Help to
Change
E2E
Tests
@DmitryVinnik dvinnik.com

Real “Test Pyramids”
Ice Cream
Cone
Hourglass
Cupcake
Hourglass
Cupcake
Ice Cream
Cone
Hourglass
@DmitryVinnik dvinnik.com

Real “Test Pyramids”
Ice Cream
Cone
Hourglass
Cupcake
Hourglass
Cupcake
Ice Cream
Cone
Hourglass
Hourglass
Cupcake
@DmitryVinnik dvinnik.com

By Fabio Pereira
@DmitryVinnik dvinnik.com

Noticing a pattern?
@DmitryVinnik dvinnik.com

Communication
is the Key!
@DmitryVinnik dvinnik.com

Agenda
Quality vs.
Quantity
Back to
Basics
Team
Dynamics
Back to
Basics
Team
Dynamics
Quality vs
Quantity
Back to
Basics
Back to
Basics
Team
Dynamics
@DmitryVinnik dvinnik.com

Communication
Goal
Alignment
↓ Direction
of Pyramid
Same
Language
Hybrid
Teams
@DmitryVinnik dvinnik.com

Team Understanding
Testing/
Production
Team
Ownership
United
Team
Customer
is Key
@DmitryVinnik dvinnik.com

Call to Action
Welcome
Change
Respect
Basics
Lead by
Example
Communicate!
@DmitryVinnik dvinnik.com

About Speaker
Twitter: @DmitryVinnik
Blog: dvinnik.dev
LinkedIn: in/dmitry-vinnik/
Email: dmitry@dvinnik.dev

Quantity or Quality – this is a common dilemma we all face when buying groceries, going to the restaurant, or shopping online. Unsurprisingly, when it comes to testing software, the same question of quality over quantity comes up. “How many tests?”, “How well to write them?”, “How much testing expertise do you need?” - all these questions aimed towards the same dilemma of quantity vs. quality. In this talk, we will discuss situations when quantity of our tests takes over their quality. We will answer a question on how this tendency of writing many unnecessary tests creates even larger issues like wasted cycles on fixing test-only failures, on maintaining existing test suite and on creating every new test from scratch. Whether you are currently facing these concerns, or when (not if) you are going to face this issue, this talk will give you necessary skills on how to address and more importantly how to prevent poor quality of the test code. The speaker will share his experience in working with legacy test suites, creating overly complicated tests himself, and how he tackled these challenges. Along with his experience, the speaker will rely on Software Engineering principles which are popularized among developers but not as commonly used by the tester community. The main takeaways of this talk will be for testers to look at their code the same way developers look at production code. In essence, we will blur the line between testing and development and learn how to take the best from development and apply it to our tests; best of both worlds.

Uphill Battle of Mobile Visual Regression

Dmitry Vinnik

Do you remember those games where you had to find differences between two almost identical images? If you've ever made changes in production, you sure played this game of searching for any visual changes you might have caused. The problem of catching visual regressions is what gave rise to a new way of testing - visual testing. While developers focus on automating their end-to-end flows with tools like Selenium, when it comes to end-to-end visual testing, many are at a loss. It is even more apparent in the world of mobile development, where devices differ in their capabilities, display dimensions and even operating systems. Hence, visual testing is a must-have in the mobile market! In this session, we discuss how to implement visual testing on mobile devices covering both native mobile (Android, iOS) and hybrid web development (React, React Native). We cover major visual concepts like layouts, responsive design, and graphics which should give the audience a clear picture of how to get started and be successful with visual testing.

Testing React with Jest: Validate Your Components Quickly!

Dmitry Vinnik

How confident are you in your React app? Does your UI render after you add a new item to the nav menu? What about style changes - do you know how a font change affects the rest of your app? If you want to have confidence in your React app, you need to have tests. Unfortunately, most testing frameworks are hard to set up, and it takes too long to run them. But this is not the case with Jest! Jest allows React developers to get a quick test result for any change on the app. And setting up Jest on React has never been easier than today! In this talk, we look at how React apps are tested E2E and why Jest stands out compared to other test frameworks. We do a live demo while implementing several main test scenarios using Jest - get ready to code along!

Modern Web Testing: Going Beyond Selenium

Dmitry Vinnik

It is safe to say that Selenium WebDriver is the number one testing tool for many software engineers across the globe. However, as the tech world has been growing rapidly, so has the testing industry. More and more UI testing frameworks besides Selenium are gaining popularity. These new test frameworks are especially appealing to its users because of the promise to solve speed, maintenance, development and other concerns of WebDriver implementations. These new, non-Selenium frameworks emphasize Rapid Test Development practices, and it has been resonating with the development community. In this talk, we dive into test solutions evolved from Selenium like Protractor, and talk about non-Selenium frameworks like TestCafe and Cypress.io. We discuss why these new tools are gaining popularity and continue to disrupt the traditional testing standards of Selenium WebDriver. More importantly, we address how to get started and what mistakes to avoid when first implementing TestCafe or Cypress.io in your team.

Testing Svelte with Jest: Validate Your Components Quickly!

Dmitry Vinnik

How confident are you in your Svelte app? Does your UI render after you add a new item to the nav menu? What about style changes - do you know how a font change affects the rest of your app? If you want to have confidence in your Svelte app, you need to have tests. Unfortunately, most testing frameworks are hard to set up, and it takes too long to run them. But this is not the case with Jest! Jest allows Svelte developers to get a quick test result for any change on the app. And setting up Jest on Svelte has never been easier than today! In this talk, we will look at how Svelte apps are tested E2E and why Jest stands out compared to other test frameworks. We will do a live demo while implementing several main test scenarios using Jest - get ready to code along!

Domain Driven Testing: Know What You’re Doing

Dmitry Vinnik

“I tested it how you told me to,” “Requirements say it's expected,” “I assumed it's fine” – these are the common phrases you hear when customer cases come up. Unfortunately, it is nothing unusual in our industry to be detached from customers' actual needs. As a result, teams regularly fail when they prioritize requirements over actual behaviour that the customers expect. This problem of misaligned teams' focus is where Domain Driven Testing (DDT) comes into play. DDT helps developers to put themselves into the customers' shoes and see the product for what it is. This prioritization of the actual behaviour over the mere following of the requirements is what defines Domain Driven Testing. In this talk, we discuss how knowledge of your company's domain (aka, the focus of your business) can improve your testing practices. We talk about Domain Driven Design techniques, Exploratory Testing, and other methods which emphasize software quality through customers' success. We touch bases on tools you can integrate into your system using Domain Driven Test Pyramid, and what common mistakes you should avoid when implementing Domain Driven Testing.

Back to the CompletableFuture: Concurrency in Action

Dmitry Vinnik

Callback hell is a known way to give any JavaScript developer nightmares. However, Java developers are not much better off since anything concurrency and multithreading related gives us cold sweats. With Threads and Runnables being the very first (and often last) things we used in Java, these classes gave many of us impression of and appreciation for complexities of concurrency. As a result, many developers abandoned the idea of ever touching thread management in Java and focused on a single-threaded development. Fear no more! The world of concurrency in Java has changed since JDK8 and continues getting better. In this talk, we discuss improvements around Concurrency API of JDK5 and the power of asynchronous programming of CompletableFutures post-JDK8. Our goal is to break out of the fear of concurrency in Java and to learn about a new, declarative way of thread programming.

Modern Web Testing: Going Beyond Selenium

Dmitry Vinnik

Selenium WebDriver has been the traditional testing standard for many years. However, many developers have concerns over test speed, maintenance, and implementation. Fortunately, new, non-Selenium frameworks like TestCafe and Cypress.io rely on Rapid Test Development practices which address common issues teams have with their old test infrastructure. In this talk, we dive into platform-specific Selenium solutions like Protractor, and discuss non-Selenium frameworks like TestCafe and Cypress.io.

Mobile Testing is hard! You have to test not only Native Mobile but also Web-based applications. This multi-platform focus makes the testing effort to be at least twice as complicated as when a simple web application is targeted. With the growing market around smartphones, developers needed more ways to ensure software quality of their product. This need is why many mobile UI test frameworks have been introduced. With the most significant share of the mobile market being taken by Android OS, development and testing efforts have been especially crucial in this ecosystem. Among the variety of Mobile UI automation tools, two frameworks have been especially notable: Robotium and Appium. However, with more organizations moving towards multi-platform solutions, those of us, who used Robotium, are slowly moving towards Appium. This journey from Robotium to Appium is where the main focus of this presentation lies. In this session, we deep dive into both Robotium and Appium. We discuss why and how to transition from Robotium to Appium in the Android ecosystem. Lastly, we look at common mistakes made during this transition, and how to avoid them.

Hands-on React Native: From Zero to Hero

All Things Open

Presented by: Dmitry Vinnik Presented at the All Things Open 2021 Raleigh, NC, USA Raleigh Convention Center Abstract: So many platforms, so little time. How do we write an app for the web, Android, iOS, and other OS without spending all our time and money? Cross-platform can be your answer! You probably heard about React Native before, a framework that allows the creation of native Android and iOS apps using React. But how do you actually get started with the framework? Whether you are an advanced iOS developer or a beginner React dev, this talk will help you get started with React Native. In this session, we will start by exploring React Native and its main concepts. Then, we will build a demo app from scratch for Android and iOS to show the power of cross-platform that the framework brings to the table!

Hands on React Native: From Zero to Hero

Dmitry Vinnik

Abstract: So many platforms, so little time. How do we write an app for the web, Android, iOS, and other OS without spending all our time and money? Cross-platform can be your answer! You probably heard about React Native before, a framework that allows you to create native Android and iOS apps using React. But how do you get started with the framework? Whether you are an advanced iOS developer or a beginner React dev, this talk will help you get started with React Native. In this session, we explore React Native and its main concepts. Then, we will build a demo app from scratch for Android and iOS to show the power of cross-platform that the framework brings to the table! Link: https://dvinnik.dev/talks/mobile/hands-on-react-native/

Do you even Function? Guiding Through Functional Interfaces

Dmitry Vinnik

Object-Oriented Programming - it is often synonymous with Java Development. But what if I were to tell you that there is more to Java than OOP principles? Starting JDK8, Java language introduced a new and exciting world of Functional Programming. This inherently powerful paradigm drives services like AWS Lambda, Azure Functions, or any other Function as a Service product out there. Functional programming offers better security, simpler maintenance, and more flexible design, so it is vital for Java developers to embrace this paradigm and learn how to use it well. In this talk, we discuss how to apply Functional programming in Java with the primary focus on Functional Interfaces. We explore out-of-the-box Functional structures, how to build custom Functions and look at common mistakes of impure abstractions and overly-DRY design.

Gauge + Taiko, BDD for Web Revived

Dmitry Vinnik

Does Behaviour Driven Development work? Unfortunately, it usually does not. While many people try to pitch as a way to bridge the gap between stakeholders on the project, many teams fail to communicate their test scenarios with everyone involved. Although this fundamental problem of lack of communication can be solved on the organization level, BDD is often used with Cucumber or Robot frameworks. Due to the complexities of these tools, developers and testers stop seeing the benefit in the entire approach of BDD and abundant the practice. However, recently, Behavior Driven Development has seen a resurgence in adoption, thanks to Gauge framework. With the latest release of Taiko, they create a great combination of communication and testing tool with the use of Gauge+Taiko. In this talk, we will discuss BDD principles and how Gauge can be used to take Behavior Driven Development to the next level. With Taiko, the audience will learn how BDD can be taken to the web in a few easy steps and to see what needs to be avoided when these tools are implemented in any organization.

Stress Driven Development, and How to Avoid It

Dmitry Vinnik

When was the last time you took a day off? How many times this week have you worked overtime? These questions are related to one thing we all experience on a daily basis - stress. Employees who are trapped by their routine to "deliver business value at all cost", often forget to take care of themselves. Unfortunately, this work-related stress affects our loved ones too, because work-life balance that we all hear about, usually means work-life stress. What if I were to say that it does not have to be this way? In this talk, we discuss ways how to relax and avoid "Stress Driven Development." We deep dive into common stressors, and draft a comprehensive guide to removing stress at work and in our personal lives.

Maximizing React Speed: Hands-On Guide to Debugging and Optimizing React Appl...

Dmitry Vinnik

Empowering businesses with serverless

Yan Cui

Serverless technologies allow developers to go faster and do so much more with less. They allow businesses to innovate faster than ever possible before and the pay-per-use pricing model opens up a world of opportunities to improve cost efficiency. Cost optimization is no longer a guessing game, but a surgical operation that can target business areas with the most saving potential based on data. New business models based on pay-per-use will soon disrupt incumbents in established markets and create better value for customers. In this talk, we'll see how businesses around the world are using serverless technologies to drive their success and growth, and the lessons we can learn from them.

Lessons Learned from 2000 Event Driven Microservices - Reversim

Natan Silnitsky

Wix has a huge scale of event driven traffic. More than 70 billion Kafka business events per day. Over the past few years Wix has made a gradual transition to an event-driven architecture for its 2000 microservices. We have made mistakes along the way but have improved and learned a lot about how to make sure our production is still maintainable, performant and resilient. In this talk you will hear about the lessons we learned including: 1. The importance of atomic operations for databases and events 2. avoiding data consistency issues due to out-of-order and duplicate processing 3. Having essential events debugging and quick-fix tools in production and a few more

Making the Web Fireproof: A Building Code for Websites

Dylan Wilbanks

The moment we start creating a website, we’re setting ourselves up for failure later. Bad code creates middle of the night fire drills. Lack of thinking about accessibility gets our employer sued. Not thinking ahead on mobile generates rework. We accept this as the normal course of business – but is there any way we could prevent (or lower) this cost? Is there anything we can learn from the building codes that dictate how our built environment is constructed? We will talk about the lessons of building codes and what we can do today to build more robust web applications and sites, including: - The need for design patterns in websites - The need for patterns in user stories so that we build websites consistently - Baking accessibility into websites comes from putting accessibility into user stories - Planning a web application is different from planning a building, but it does share similar aspects of work - The better we can becoming at creating best practices (building codes) the better we will get at building sites, and the closer we will come to Berners-Lee’s “one web for all” dream Presented at MinneWebCon 2015.

BuildStuff - Lessons Learned from 2000 Event Driven Microservices

Natan Silnitsky

DevOps: Find Solutions, Not More Defects

TechWell

The promise of DevOps is that we can push new ideas out to market faster while avoiding delivering serious defects into production. Andreas Grabner explains that testers are no longer measured by the number of defect reports they enter, nor are developers measured by the lines of code they write. As a team, you are measured by how fast you can deploy high quality functionality to the end user. Achieving this goal requires testers to increase their skills. It’s all about finding solutions—not just problems. Testers must transition from reporting “app crashes” to providing details such as “memory leak caused by bad cache implementation.” Instead of reporting “it’s slow,” testers must discover “wrong hibernate configuration causes too much traffic from the database.” Using three real-life examples, Andreas illustrates what it takes for testing teams to become part of the DevOps transformation—bringing more value to the entire organization.

DevSum - Lessons Learned from 2000 microservices

Natan Silnitsky

Better Start: Enforcing Best Engineering Practices with Kotlin

Dmitry Vinnik

As Developers, we are getting lazy! With amazing IDEs and plugins we use on a daily basis, we let these tools do the most important job for a Software Project – ensure maintainability of the codebase. These tools with static analysis, formatters and styleguides keep our code clean and readable while we can focus on making the application to work. Despite this abstraction of styling and duplication detection, we, as Software Engineers, are still responsible to keep in mind best practices like DRY, KISS, YAGNI, and many more. While IDEs are great at detecting basic mistakes, we still need to choose the best possible solution among variety of solutions. In this talk, we will look at Kotlin as a way to enforce best Software Engineering practices on the language-level. We will see how Kotlin by limiting verbosity, by using private data classes, extension functions and many other functionalities, allow for more flexible and maintainable codebase. The main goal of this talk is to convince you that Kotlin is a great way to bring years of experience of using best practices to a first-year university student, or to a long-time Java veteran.

Wix+Confluent Meetup - Lessons Learned from 2000 Event Driven Microservices

Natan Silnitsky

Building 21st Century Contact Centre Applications

Dan Jenkins

Rewrite or Refactor That Is the Question - DecompileD 2021

Vladimir Jovanovic

GeeCon - Lessons Learned from 2000 microservices

Natan Silnitsky

Predictability for the Web

Robert Nyman

Sitecore Digital Survivor Series - How Web and App Performance impacts Custom...

Dynatrace

Leadership in Open Source and Why Companies Care

Dmitry Vinnik

In this talk, we will discuss the importance of open source for companies and how to become a leader in the open source space. By contributing to open source projects, companies can establish themselves as thought leaders, build credibility with customers, and increase productivity. Join us to learn how open source can help drive innovation, improve customer satisfaction, and keep companies ahead of the competition.

Cross-Platform CSS (Yes, it's Possible!) with Yoga

Dmitry Vinnik

It's no secret that people view the same website across many devices, browsers, and screen sizes. To make the same app work on all these platforms, developers have to spend a significant amount of time. If only there were an engine that allows web developers to write their code once and use it everywhere. Presenting Yoga, an open source, cross-platform layout engine that uses CSS layouts to manage user interfaces across platforms. In this talk, we learn about Yoga's main concepts and use-cases. Then, we will build a demo app for React Native and Android to showcase the reusability of Yoga.

Similar to Testing at Scale at Meta and Salesforce

From Robotium to Appium: Choose your Journey

Dmitry Vinnik

Hands-on React Native: From Zero to Hero

All Things Open

Hands on React Native: From Zero to Hero

Dmitry Vinnik

Do you even Function? Guiding Through Functional Interfaces

Dmitry Vinnik

Gauge + Taiko, BDD for Web Revived

Dmitry Vinnik

Stress Driven Development, and How to Avoid It

Dmitry Vinnik

Maximizing React Speed: Hands-On Guide to Debugging and Optimizing React Appl...

Dmitry Vinnik

Empowering businesses with serverless

Yan Cui

Lessons Learned from 2000 Event Driven Microservices - Reversim

Natan Silnitsky

Making the Web Fireproof: A Building Code for Websites

Dylan Wilbanks

BuildStuff - Lessons Learned from 2000 Event Driven Microservices

Natan Silnitsky

DevOps: Find Solutions, Not More Defects

TechWell

DevSum - Lessons Learned from 2000 microservices

Natan Silnitsky

Better Start: Enforcing Best Engineering Practices with Kotlin

Dmitry Vinnik

Wix+Confluent Meetup - Lessons Learned from 2000 Event Driven Microservices

Natan Silnitsky

Building 21st Century Contact Centre Applications

Dan Jenkins

Rewrite or Refactor That Is the Question - DecompileD 2021

Vladimir Jovanovic

GeeCon - Lessons Learned from 2000 microservices

Natan Silnitsky

Predictability for the Web

Robert Nyman

Sitecore Digital Survivor Series - How Web and App Performance impacts Custom...

Dynatrace

Similar to Testing at Scale at Meta and Salesforce (20)

From Robotium to Appium: Choose your Journey

Hands-on React Native: From Zero to Hero

Hands on React Native: From Zero to Hero

Do you even Function? Guiding Through Functional Interfaces

Gauge + Taiko, BDD for Web Revived

Stress Driven Development, and How to Avoid It

Maximizing React Speed: Hands-On Guide to Debugging and Optimizing React Appl...

Empowering businesses with serverless

Lessons Learned from 2000 Event Driven Microservices - Reversim

Making the Web Fireproof: A Building Code for Websites

BuildStuff - Lessons Learned from 2000 Event Driven Microservices

DevOps: Find Solutions, Not More Defects

DevSum - Lessons Learned from 2000 microservices

Better Start: Enforcing Best Engineering Practices with Kotlin

Wix+Confluent Meetup - Lessons Learned from 2000 Event Driven Microservices

Building 21st Century Contact Centre Applications

Rewrite or Refactor That Is the Question - DecompileD 2021

GeeCon - Lessons Learned from 2000 microservices

Predictability for the Web

Sitecore Digital Survivor Series - How Web and App Performance impacts Custom...

More from Dmitry Vinnik

Leadership in Open Source and Why Companies Care

Dmitry Vinnik

Cross-Platform CSS (Yes, it's Possible!) with Yoga

Dmitry Vinnik

Documentation Made Easy with Docusaurus

Dmitry Vinnik

Do you know how to get someone to do something difficult? Make it easy! Documentation is one of those things: everyone understands it's important, but few want to write it. And if the docs platform is difficult to use or extend, doc writing becomes a punishment. Docusaurus is here to help! In this session, we will walk through getting started with Docusaurus, its architecture and MDX support. We will explore built-in themes with plugins, and even create one during the talk. So, let's learn how to make doc writing enjoyable, together!

Fixing Broken Windows: Dealing with Legacy Systems, Poor Quality and Gaps

Dmitry Vinnik

We all encountered a “Broken Window” theory in practice. The original idea was that if someone breaks a window in a neighborhood and this window is not repaired right away, the entire area will start getting messier at an accelerated rate. The same theory is also true for Software Development. How many times have you looked at a legacy system with no code coverage, and decided not to write any tests because "this is how we do things here"? These bad practices behave just like those "Broken Windows." They cause our code to degrade and become unusable. In this talk, we discuss how to break away from bad development practices and how to address significant gaps in your legacy and current systems. We look at ways to lead by example successfully and introduce refactoring culture into your team and organization. We cover tips and tricks that help improve the development culture and emphasize the codebase's general health.

Ent: Making Data Easy in Go

Dmitry Vinnik

What do most applications do these days? They interact with data in one way or another. As your app’s scale increases, it becomes more challenging to manage databases, schemas, queries, and constraints. These challenges are why a technique called Object-Relational Mapping, or ORM, was created. At Meta, we tend to think about data modeling in graph concepts and as we were working with Go, it led us to create a new open source project, Ent. Ent is an entity framework built for Go programming language. This framework provides developers with a Graph-based, Object Relational Mapping. In this talk, we will learn how to use Ent when dealing with data schemas, including types, relations and constraints. It’s a hands-on talk, so get ready to follow along!

The 10,000 Steps of Open Source Project Health

Dmitry Vinnik

Human health is complex - it's not something we can buy; it's something we have to earn! This exact approach goes for open source projects and their communities. A truly dedicated and loyal fanbase cannot be bought; it has to be nurtured. But what do we mean when we call a community and the open source project "healthy"? This question is what we are trying to answer at Facebook! In this talk, we will look at the approach that the Facebook Open Source team takes to measure the current state of Facebook open source projects, and how we use these metrics to prioritize and to direct our DevRel focus. Ultimately, we aim to show how by looking at information about your open source communities, your team can concentrate on the quality of the projects instead of only the quantity of repositories that you make public.

Developing Lightning Components for Communities.pptx

Dmitry Vinnik

Remote Work: Gateway to Freedom

Dmitry Vinnik

Kindness Engineering: Focusing on What Matters

Dmitry Vinnik

Build Tests to Build Websites

Dmitry Vinnik

Technologies like Squarespace, Salesforce, WordPress, or WIX are extremely popular for those who want to create a working website without necessary developer knowledge. In this talk, I would explore how Salesforce uses Page Object Model patterns to test its Communities platform which is used to develop websites for Salesforce users. Throughout the talk, we will explore how multi-frame platform can be directly mapped to POM for Selenium Webdriver, and how client side code is developed to support this pattern. The importance and complexity of these test framework is that it needs to be applicable for both platform and produced websites. Recording: https://youtu.be/6opoooLdonI

More from Dmitry Vinnik (10)

Leadership in Open Source and Why Companies Care

Cross-Platform CSS (Yes, it's Possible!) with Yoga

Documentation Made Easy with Docusaurus

Fixing Broken Windows: Dealing with Legacy Systems, Poor Quality and Gaps

Ent: Making Data Easy in Go

The 10,000 Steps of Open Source Project Health

Developing Lightning Components for Communities.pptx

Remote Work: Gateway to Freedom

Kindness Engineering: Focusing on What Matters

Build Tests to Build Websites

Recently uploaded

Orion Context Broker introduction 20240604

Fermin Galan

Vitthal Shirke Java Microservices Resume.pdf

Vitthal Shirke

Providing Globus Services to Users of JASMIN for Environmental Data Analysis

Globus

JASMIN is the UK’s high-performance data analysis platform for environmental science, operated by STFC on behalf of the UK Natural Environment Research Council (NERC). In addition to its role in hosting the CEDA Archive (NERC’s long-term repository for climate, atmospheric science & Earth observation data in the UK), JASMIN provides a collaborative platform to a community of around 2,000 scientists in the UK and beyond, providing nearly 400 environmental science projects with working space, compute resources and tools to facilitate their work. High-performance data transfer into and out of JASMIN has always been a key feature, with many scientists bringing model outputs from supercomputers elsewhere in the UK, to analyse against observational or other model data in the CEDA Archive. A growing number of JASMIN users are now realising the benefits of using the Globus service to provide reliable and efficient data movement and other tasks in this and other contexts. Further use cases involve long-distance (intercontinental) transfers to and from JASMIN, and collecting results from a mobile atmospheric radar system, pushing data to JASMIN via a lightweight Globus deployment. We provide details of how Globus fits into our current infrastructure, our experience of the recent migration to GCSv5.4, and of our interest in developing use of the wider ecosystem of Globus services for the benefit of our user community.

A Sighting of filterA in Typelevel Rite of Passage

Philip Schwarz

GOING AOT WITH GRAALVM FOR SPRING BOOT (SPRING IO)

Alina Yurenko

Globus Compute Introduction - GlobusWorld 2024

Globus

Atelier - Innover avec l’IA Générative et les graphes de connaissances

Neo4j

Atelier - Innover avec l’IA Générative et les graphes de connaissances Allez au-delà du battage médiatique autour de l’IA et découvrez des techniques pratiques pour utiliser l’IA de manière responsable à travers les données de votre organisation. Explorez comment utiliser les graphes de connaissances pour augmenter la précision, la transparence et la capacité d’explication dans les systèmes d’IA générative. Vous partirez avec une expérience pratique combinant les relations entre les données et les LLM pour apporter du contexte spécifique à votre domaine et améliorer votre raisonnement. Amenez votre ordinateur portable et nous vous guiderons sur la mise en place de votre propre pile d’IA générative, en vous fournissant des exemples pratiques et codés pour démarrer en quelques minutes.

Lecture 1 Introduction to games development

abdulrafaychaudhry

Text-Summarization-of-Breaking-News-Using-Fine-tuning-BART-Model.pptx

ShamsuddeenMuhammadA

Gamify Your Mind; The Secret Sauce to Delivering Success, Continuously Improv...

Shahin Sheidaei

Games are powerful teaching tools, fostering hands-on engagement and fun. But they require careful consideration to succeed. Join me to explore factors in running and selecting games, ensuring they serve as effective teaching tools. Learn to maintain focus on learning objectives while playing, and how to measure the ROI of gaming in education. Discover strategies for pitching gaming to leadership. This session offers insights, tips, and examples for coaches, team leads, and enterprise leaders seeking to teach from simple to complex concepts.

Globus Connect Server Deep Dive - GlobusWorld 2024

Globus

Understanding Globus Data Transfers with NetSage

Globus

NetSage is an open privacy-aware network measurement, analysis, and visualization service designed to help end-users visualize and reason about large data transfers. NetSage traditionally has used a combination of passive measurements, including SNMP and flow data, as well as active measurements, mainly perfSONAR, to provide longitudinal network performance data visualization. It has been deployed by dozens of networks world wide, and is supported domestically by the Engagement and Performance Operations Center (EPOC), NSF #2328479. We have recently expanded the NetSage data sources to include logs for Globus data transfers, following the same privacy-preserving approach as for Flow data. Using the logs for the Texas Advanced Computing Center (TACC) as an example, this talk will walk through several different example use cases that NetSage can answer, including: Who is using Globus to share data with my institution, and what kind of performance are they able to achieve? How many transfers has Globus supported for us? Which sites are we sharing the most data with, and how is that changing over time? How is my site using Globus to move data internally, and what kind of performance do we see for those transfers? What percentage of data transfers at my institution used Globus, and how did the overall data transfer performance compare to the Globus users?

Prosigns: Transforming Business with Tailored Technology Solutions

Prosigns

Unlocking Business Potential: Tailored Technology Solutions by Prosigns Discover how Prosigns, a leading technology solutions provider, partners with businesses to drive innovation and success. Our presentation showcases our comprehensive range of services, including custom software development, web and mobile app development, AI & ML solutions, blockchain integration, DevOps services, and Microsoft Dynamics 365 support. Custom Software Development: Prosigns specializes in creating bespoke software solutions that cater to your unique business needs. Our team of experts works closely with you to understand your requirements and deliver tailor-made software that enhances efficiency and drives growth. Web and Mobile App Development: From responsive websites to intuitive mobile applications, Prosigns develops cutting-edge solutions that engage users and deliver seamless experiences across devices. AI & ML Solutions: Harnessing the power of Artificial Intelligence and Machine Learning, Prosigns provides smart solutions that automate processes, provide valuable insights, and drive informed decision-making. Blockchain Integration: Prosigns offers comprehensive blockchain solutions, including development, integration, and consulting services, enabling businesses to leverage blockchain technology for enhanced security, transparency, and efficiency. DevOps Services: Prosigns' DevOps services streamline development and operations processes, ensuring faster and more reliable software delivery through automation and continuous integration. Microsoft Dynamics 365 Support: Prosigns provides comprehensive support and maintenance services for Microsoft Dynamics 365, ensuring your system is always up-to-date, secure, and running smoothly. Learn how our collaborative approach and dedication to excellence help businesses achieve their goals and stay ahead in today's digital landscape. From concept to deployment, Prosigns is your trusted partner for transforming ideas into reality and unlocking the full potential of your business. Join us on a journey of innovation and growth. Let's partner for success with Prosigns.

Large Language Models and the End of Programming

Matt Welsh

OpenFOAM solver for Helmholtz equation, helmholtzFoam / helmholtzBubbleFoam

takuyayamamoto1800

Graspan: A Big Data System for Big Code Analysis

Aftab Hussain

We built a disk-based parallel graph system, Graspan, that uses a novel edge-pair centric computation model to compute dynamic transitive closures on very large program graphs. We implement context-sensitive pointer/alias and dataflow analyses on Graspan. An evaluation of these analyses on large codebases such as Linux shows that their Graspan implementations scale to millions of lines of code and are much simpler than their original implementations. These analyses were used to augment the existing checkers; these augmented checkers found 132 new NULL pointer bugs and 1308 unnecessary NULL tests in Linux 4.4.0-rc5, PostgreSQL 8.3.9, and Apache httpd 2.2.18. - Accepted in ASPLOS ‘17, Xi’an, China. - Featured in the tutorial, Systemized Program Analyses: A Big Data Perspective on Static Analysis Scalability, ASPLOS ‘17. - Invited for presentation at SoCal PLS ‘16. - Invited for poster presentation at PLDI SRC ‘16.

A Study of Variable-Role-based Feature Enrichment in Neural Models of Code

Aftab Hussain

Understanding variable roles in code has been found to be helpful by students in learning programming -- could variable roles help deep neural models in performing coding tasks? We do an exploratory study. - These are slides of the talk given at InteNSE'23: The 1st International Workshop on Interpretability and Robustness in Neural Software Engineering, co-located with the 45th International Conference on Software Engineering, ICSE 2023, Melbourne Australia

AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI App

Google

AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI App 👉👉 Click Here To Get More Info 👇👇 https://sumonreview.com/ai-fusion-buddy-review AI Fusion Buddy Review: Key Features ✅Create Stunning AI App Suite Fully Powered By Google's Latest AI technology, Gemini ✅Use Gemini to Build high-converting Converting Sales Video Scripts, ad copies, Trending Articles, blogs, etc.100% unique! ✅Create Ultra-HD graphics with a single keyword or phrase that commands 10x eyeballs! ✅Fully automated AI articles bulk generation! ✅Auto-post or schedule stunning AI content across all your accounts at once—WordPress, Facebook, LinkedIn, Blogger, and more. ✅With one keyword or URL, generate complete websites, landing pages, and more… ✅Automatically create & sell AI content, graphics, websites, landing pages, & all that gets you paid non-stop 24*7. ✅Pre-built High-Converting 100+ website Templates and 2000+ graphic templates logos, banners, and thumbnail images in Trending Niches. ✅Say goodbye to wasting time logging into multiple Chat GPT & AI Apps once & for all! ✅Save over $5000 per year and kick out dependency on third parties completely! ✅Brand New App: Not available anywhere else! ✅ Beginner-friendly! ✅ZERO upfront cost or any extra expenses ✅Risk-Free: 30-Day Money-Back Guarantee! ✅Commercial License included! See My Other Reviews Article: (1) AI Genie Review: https://sumonreview.com/ai-genie-review (2) SocioWave Review: https://sumonreview.com/sociowave-review (3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review (4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review #AIFusionBuddyReview, #AIFusionBuddyFeatures, #AIFusionBuddyPricing, #AIFusionBuddyProsandCons, #AIFusionBuddyTutorial, #AIFusionBuddyUserExperience #AIFusionBuddyforBeginners, #AIFusionBuddyBenefits, #AIFusionBuddyComparison, #AIFusionBuddyInstallation, #AIFusionBuddyRefundPolicy, #AIFusionBuddyDemo, #AIFusionBuddyMaintenanceFees, #AIFusionBuddyNewbieFriendly, #WhatIsAIFusionBuddy?, #HowDoesAIFusionBuddyWorks

APIs for Browser Automation (MoT Meetup 2024)

Boni García

GraphSummit Paris - The art of the possible with Graph Technology

Neo4j

Recently uploaded (20)

Orion Context Broker introduction 20240604

Vitthal Shirke Java Microservices Resume.pdf

Providing Globus Services to Users of JASMIN for Environmental Data Analysis

A Sighting of filterA in Typelevel Rite of Passage

GOING AOT WITH GRAALVM FOR SPRING BOOT (SPRING IO)

Globus Compute Introduction - GlobusWorld 2024

Atelier - Innover avec l’IA Générative et les graphes de connaissances

Lecture 1 Introduction to games development

Text-Summarization-of-Breaking-News-Using-Fine-tuning-BART-Model.pptx

Gamify Your Mind; The Secret Sauce to Delivering Success, Continuously Improv...

Globus Connect Server Deep Dive - GlobusWorld 2024

Understanding Globus Data Transfers with NetSage

Prosigns: Transforming Business with Tailored Technology Solutions

Large Language Models and the End of Programming

OpenFOAM solver for Helmholtz equation, helmholtzFoam / helmholtzBubbleFoam

Graspan: A Big Data System for Big Code Analysis

A Study of Variable-Role-based Feature Enrichment in Neural Models of Code

AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI App

APIs for Browser Automation (MoT Meetup 2024)

GraphSummit Paris - The art of the possible with Graph Technology

Testing at Scale at Meta and Salesforce

1. Testing at Scale: Learning from Experiences at SFDC and Meta Dmitry Vinnik @DmitryVinnik dvinnik.com

2. What do I do? @DmitryVinnik 2

3. @DmitryVinnik 3

4. @DmitryVinnik 4

5. Let’s get back to the talk @DmitryVinnik dvinnik.com

6. Little Kids, Little Problems, @DmitryVinnik dvinnik.com

7. Little Kids, Little Problems, Big Kids, Big Problems @DmitryVinnik dvinnik.com

8. Small Companies, Small Problems, @DmitryVinnik dvinnik.com

9. Small Companies, Small Problems, Big Companies, Big Problems @DmitryVinnik dvinnik.com

10. In reality, @DmitryVinnik dvinnik.com

11. It all comes down to one issue @DmitryVinnik dvinnik.com

12. Gap within Teams @DmitryVinnik dvinnik.com

13. Gap within Teams Engineers Testers Stakeholders @DmitryVinnik dvinnik.com

14. Our Goal Today? @DmitryVinnik dvinnik.com

15. Bridge that Gap @DmitryVinnik dvinnik.com

16. Gap within Teams Engineers Testers Stakeholders @DmitryVinnik dvinnik.com

17. Engineers Testers Stakeholders Bridging the Gap @DmitryVinnik dvinnik.com

18. Today’s Focus

19. Today’s Focus Union of Engineering and Testing Importance of Responsibility for Quality Quality vs Quantity

20. Agenda @DmitryVinnik dvinnik.com

21. Agenda Quality vs Quantity Back to Basics Team Dynamics @DmitryVinnik dvinnik.com

22. Agenda Quality vs Quantity Back to Basics Team Dynamics Back to Basics Team Dynamics @DmitryVinnik dvinnik.com

23. Where should we start? @DmitryVinnik dvinnik.com

24. Let’s talk about Life @DmitryVinnik dvinnik.com

25. Book Suggestion @DmitryVinnik dvinnik.com

26. Is it really all about Quantity? @DmitryVinnik dvinnik.com

27. “We’ve added Years to Life, not Life to Years” by George Carlin @DmitryVinnik dvinnik.com

28. Quality is what matters! @DmitryVinnik dvinnik.com

29. In Life @DmitryVinnik dvinnik.com

30. and @DmitryVinnik dvinnik.com

31. In Testing @DmitryVinnik dvinnik.com

32. What is a problem with Quantity? @DmitryVinnik dvinnik.com

33.

34. Your Goal should be @DmitryVinnik dvinnik.com

35. @DmitryVinnik dvinnik.com

36. Conclusion: @DmitryVinnik dvinnik.com

37. Once again @DmitryVinnik dvinnik.com

38. Quality over Quantity @DmitryVinnik dvinnik.com

39. Now @DmitryVinnik dvinnik.com

40. We have our priorities straight @DmitryVinnik dvinnik.com

41. How do we improve? @DmitryVinnik dvinnik.com

42. Back to the basics @DmitryVinnik dvinnik.com

43. Agenda Quality vs. Quantity Back to Basics Team Dynamics Back to Basics Team Dynamics Quality vs Quantity Back to Basics @DmitryVinnik dvinnik.com

44. What are our Test Basics? @DmitryVinnik dvinnik.com

45. Test Pyramid ↑ Fidelity ↓ Speed ↑ Cost ↓ Fidelity ↑ Speed ↓ Cost @DmitryVinnik dvinnik.com

46. Simple, right? @DmitryVinnik dvinnik.com

47. Easier said than done @DmitryVinnik dvinnik.com

48. Real life @DmitryVinnik dvinnik.com

49. Real life is more Real @DmitryVinnik dvinnik.com

50. Real “Test Pyramids” Ice Cream Cone Hourglass Cupcake Hourglass Cupcake @DmitryVinnik dvinnik.com

51. By Tim Cochran @DmitryVinnik dvinnik.com

52. What is a Problem? @DmitryVinnik dvinnik.com

53. Ice Cream Problems Manual Testing ↑ UI Tests ↓ Unit Tests ↑ UI Tests ↓ Unit Tests @DmitryVinnik dvinnik.com

54. Manual Testing is Important

55. Book Suggestion @DmitryVinnik dvinnik.com

56. But @DmitryVinnik dvinnik.com

57. Manual Testing @DmitryVinnik dvinnik.com

58. Manual Testing Cannot be Core Testing @DmitryVinnik dvinnik.com

59. Why? @DmitryVinnik dvinnik.com

60. Continuous Delivery

61. Continuous Delivery By Ham Vocke @DmitryVinnik dvinnik.com

62. Bridging the Gap: Engineers and Testers @DmitryVinnik dvinnik.com

63. Continuous Delivery By Ham Vocke @DmitryVinnik dvinnik.com

64. Testing and Continuous Delivery Smoke Tests Regression Funnel @DmitryVinnik dvinnik.com

65. Ice Cream Problems Manual Testing ↑ UI Tests ↓ Unit Tests ↑ UI Tests ↓ Unit Tests Manual Testing ↑ UI Tests @DmitryVinnik dvinnik.com

66. Lots of UI tests @DmitryVinnik dvinnik.com

67. So what? @DmitryVinnik dvinnik.com

68. Remember the Pyramid @DmitryVinnik dvinnik.com

69. Remember the Pyramid: UI Tests ↑ Fidelity ↓ Speed ↑ Cost @DmitryVinnik dvinnik.com

70. Why so many UI tests? Test Duplication Sunk Cost Fallacy Decomposition Fallacy “Cheap” Investment “Cheap” Investment Sunk Cost Fallacy Decomposition Fallacy @DmitryVinnik dvinnik.com

71. Why so many UI tests? Test Duplication Sunk Cost Fallacy Decomposition Fallacy “Cheap” Investment “Cheap” Investment Sunk Cost Fallacy Decomposition Fallacy Test Duplication “Cheap” Investment Sunk Cost Fallacy Decomposition Fallacy @DmitryVinnik dvinnik.com

72. Ultimately, Priority Fallacies @DmitryVinnik dvinnik.com

73. Priority Fallacies Ball Throwing Regression: Future Problem No Dev Ownership @DmitryVinnik dvinnik.com

74. Testing @DmitryVinnik dvinnik.com

75. Testing is Everyone’s Responsibility @DmitryVinnik dvinnik.com

76. Priority Fallacies: Solutions Recognize Problem Test Code/ Prod Code Handoff Standards @DmitryVinnik dvinnik.com

77. Testing as Production Code Review Test Code Test Champions 1:1 Model Find Risky Areas

78. Book Suggestion @DmitryVinnik dvinnik.com

79. Ice Cream Problems Manual Testing ↑ UI Tests ↓ Unit Tests ↑ UI Tests ↓ Unit Tests Manual Testing ↑ UI Tests ↑ UI Tests ↓ Unit Tests

80. What are Unit Tests? @DmitryVinnik dvinnik.com

81. Why are they important? @DmitryVinnik dvinnik.com

82. Unit Tests are @DmitryVinnik dvinnik.com

83. Feedback for your Team @DmitryVinnik dvinnik.com

84. Why does feedback matter? @DmitryVinnik dvinnik.com

85. By Jeff Atwood @DmitryVinnik dvinnik.com

86. Bridging the Gap: Engineers and Testers @DmitryVinnik dvinnik.com

87. Not just Unit Tests @DmitryVinnik dvinnik.com

88. More Feedback Tests! @DmitryVinnik dvinnik.com

89. Testing for Feedback Loop Help to Write Help to Understand Help to Change Help to Understand Help to Change Unit Tests Help to Understand Integration Tests Help to Change E2E Tests @DmitryVinnik dvinnik.com

90. By Tim Cochran @DmitryVinnik dvinnik.com

91. Real “Test Pyramids” Ice Cream Cone Hourglass Cupcake Hourglass Cupcake Ice Cream Cone Hourglass @DmitryVinnik dvinnik.com

92. By Tim Cochran @DmitryVinnik dvinnik.com

93. Problem? @DmitryVinnik dvinnik.com

94. Communication @DmitryVinnik dvinnik.com

95. Real “Test Pyramids” Ice Cream Cone Hourglass Cupcake Hourglass Cupcake Ice Cream Cone Hourglass Hourglass Cupcake @DmitryVinnik dvinnik.com

96. By Fabio Pereira @DmitryVinnik dvinnik.com

97. Problem? @DmitryVinnik dvinnik.com

98. Communication @DmitryVinnik dvinnik.com

99. Noticing a pattern? @DmitryVinnik dvinnik.com

100. Communication is the Key! @DmitryVinnik dvinnik.com

101. Agenda Quality vs. Quantity Back to Basics Team Dynamics Back to Basics Team Dynamics Quality vs Quantity Back to Basics Back to Basics Team Dynamics @DmitryVinnik dvinnik.com

102. Communication Goal Alignment ↓ Direction of Pyramid Same Language Hybrid Teams @DmitryVinnik dvinnik.com

103.

104. Team Understanding Testing/ Production Team Ownership United Team Customer is Key @DmitryVinnik dvinnik.com

105. Call to Action Welcome Change Respect Basics Lead by Example Communicate! @DmitryVinnik dvinnik.com

106. Q/A @DmitryVinnik dvinnik.com

107. About Speaker Twitter: @DmitryVinnik Blog: dvinnik.dev LinkedIn: in/dmitry-vinnik/ Email: dmitry@dvinnik.dev

Editor's Notes

Will talk about life About Ice Cream
With better foundation, easier to build the bridge
With better foundation, easier to build the bridge
With better foundation, easier to build the bridge
https://www.amazon.com/Natural-Causes-Epidemic-Certainty-Ourselves/dp/1455535915
Is it really about how many years we have?
Longevity is meaningless without quality of life
Can't see the forest for the trees Need to move from Too many incorrect tests Missed valid cases Overworked testers (remember staying late) Reference: https://www.pexels.com/photo/green-trees-113338/
Goldilocks testing suites - just enough Towards Fewer tests but to the point Rest Valid issues are uncovered Reference: https://www.amazon.com/Goldilocks-Three-Bears-Parragon-Books/dp/1445477947
Explain width is #tests
Getting hungry with these examples Looking and fixing real problems
Describe each step Reference: https://medium.com/@timothy.cochran/test-pyramid-the-key-to-good-automated-test-strategy-9f3d7e3c02d5
Who doesn’t like ice cream?
Manual testing is a problem especially because we have the most number of those tests Disbalance of the pyramid Problematic because of the aspects of every level: fidelity, cost and speed
Who doesn’t like ice cream?
Book Link: https://www.amazon.ca/Explore-Increase-Confidence-Exploratory-Testing/dp/1937785025
One of the reasons
Rate of changes is increasing Need to keep up development Need to keep up testing Reference: https://martinfowler.com/articles/practical-test-pyramid.html
Want to empower Testers Improve self-esteem
Highlight the importance of testing Reference: https://martinfowler.com/articles/practical-test-pyramid.html
Place of Testing in CD Importance of Feedback loop Importance of Testing Nobody can say - “it is just tests” Smoke Test Bare minimum for CD (scale matters), usually no UI Regression Tests Funnel Separate, running longer tests Problem with UI tests
Manual testing is a problem especially because we have the most number of those tests Disbalance of the pyramid Problematic because of the aspects of every level: fidelity, cost and speed
Fidelity is good, but how many real customer use cases do you have? If slow, where does it fit on CD pipeline? Who would maintain it?
Duplication Especially on between layers Cheap Investment fallacy “Testing a whole system is cheaper than testing its constituent parts” Same people who like to throw a word “synergy” around Sunk Cost Fallacy Cost that has already been incurred and cannot be recovered Keeping tests around cuz already spend time on them - simply delete them Decomposition fallacy “Testing whole system is not the same as testing its parts”
Throwing a ball over the fence “It is a testers’ job now” It is a problem for future Remember, cost of switching context between tasks is huge Connected to the the last part - Team Dynamics
Similar to AA - accept that there is a problem Establish handoff standards Developers Initial set of basic tests Create initial test plan Testers Approve Edge cases Testing as Production Code
Make sure Code Reviews are created (mentioned this previously) Test Champions for code reviews 1 Story : 1 Test Suite Test areas which can be risky - not getters
Reference: https://www.amazon.com/Pragmatic-Programmer-Journeyman-Master/
What’s a problem to keep them a small number?
Want to know if anything broke Want to know if new feature works etc.
Reference: https://blog.codinghorror.com/when-understanding-means-rewriting/
Reference: https://medium.com/@timothy.cochran/test-pyramid-the-key-to-good-automated-test-strategy-9f3d7e3c02d5
Reasons: TDD with same old practices of lots of UI tests Reference: https://medium.com/@timothy.cochran/test-pyramid-the-key-to-good-automated-test-strategy-9f3d7e3c02d5
Reasons: Everybody is involved but still duplication Reference: https://www.thoughtworks.com/insights/blog/introducing-software-testing-cupcake-anti-pattern
Everyone understands what they are trying to build - best customer experience Not Hunger Games Everyone should keep moving to the lower layers Ubiquitous Language Naming production and test classes Cross-Functional Teams Encourage Training (LogiGear example)
South Korea in 1980s and 1990s From book, Outliers, by Malcolm Gladwell Afraid to speak up Changed to English and got better Reaching Understanding Reference: https://www.pexels.com/photo/jet-cloud-landing-aircraft-46148/
Test=Production code Everyone is responsible Everyone is equal Customer is the goal

Testing at Scale at Meta and Salesforce

Recommended

Recommended

More Related Content

Similar to Testing at Scale at Meta and Salesforce

Similar to Testing at Scale at Meta and Salesforce (20)

More from Dmitry Vinnik

More from Dmitry Vinnik (10)

Recently uploaded

Recently uploaded (20)

Testing at Scale at Meta and Salesforce

Editor's Notes